Nonremoval of Immediate Abutments in Cases Involving Subcrestally Placed Postextractive Tapered Single Implants: A Randomized Controlled Clinical Study

Abstract

The nonremoval of abutments placed at the time of the surgery improves the stability of healed soft and hard tissues around the immediately restored, subcrestally placed tapered single maxillary implant.

The effect of one‐time abutment placement on interproximal bone levels and peri‐implant soft tissues: a prospective randomized clinical trial

“…; Degidi et al. ; Grandi et al. ), also with similar outcomes to the results of the present clinical trial.…”

Influence of abutment disconnection on peri‐implant marginal bone loss: A randomized clinical trial

“…The published studies evaluating peri‐implant marginal bone loss concerning abutment disconnections showed considerable variety in methodology and results. Three randomized clinical trials involved implants positioned in fresh extraction sockets (Canullo et al, ; Degidi et al, ; Grandi et al, ) and two of them observed less bone resorption for implants with no abutment disconnection (Canullo et al, ; Grandi et al, ). In another study that used fresh extraction sockets and healed sites (Bressan et al, ; Esposito et al, ; Luongo et al, ), no differences were observed at 4‐month follow‐up (Luongo et al, ), however, repeated abutment disconnections increased bone loss after one and 3 years (Bressan et al, ; Esposito et al, ).…”

“…In addition, the implants were restored with cement‐retained prostheses, which may undergo interference from other factors such as the presence of luting agent excess in the peri‐implant space (Linkevicius, Puisys, Vindasiute, Linkeviciene, & Apse, ; Linkevicius, Vindasiute, et al, ). Another relevant aspect that could interfere with the results was the inclusion of smoking volunteers in all these previous studies (Bressan et al, ; Canullo et al, ; Degidi et al, ; Esposito et al, ; Grandi et al, , ; Koutouzis et al, ; Luongo et al, ; Molina et al, ). To avoid this type of influence (Gothberg, Grondahl, Omar, Thomsen, & Slotte, ), only non‐smokers were included in this study.…”

“…Three of them involved implant placement in fresh post‐extraction alveolar socket and immediate loading (Canullo et al, ; Degidi, Nardi, Daprile, & Piattelli, ; Grandi, Guazzi, Samarani, Maghaireh, & Grandi, ). Only one of these studies found no statistically significant differences for peri‐implant marginal bone loss between the groups (Degidi et al, ). Other three papers originated from the same study admitted healed sites and fresh post‐extraction alveolar sockets (Bressan et al, ; Esposito et al, ; Luongo et al, ) and reported increased bone loss for repeated abutment disconnection group after a follow‐up period of one and 3 years (Bressan et al, ; Esposito et al, ).…”

Avaliação histológica e histomorfométrica do comportamento ósseo em relação à profundidade da linha marginal de cimentação de próteses sobre implantes Cone Morse: estudo experimental em cães

“…Correlacionando os resultados encontrados nesta pesquisa com a revisão de literatura prévia, destacam-se trabalhos onde a instalação única do pilar protético, permanente e definitiva, no momento da instalação do implante, proporciona um efeito positivo sobre a retenção e a estabilidade do tecido ósseo marginal (DEGIDI et al, 2013c;KOUTOUZIS et al, 2011). Adicionalmente, Castro et al (2014) Na comparação dessas respostas com as dos outros animais, é possível inferir que o animal 2 apresenta uma boa característica biológica cicatricial em relação ao tecidos ósseos, conjuntivos e epiteliais bucais, sendo esta característica possivelmente superior à presente nos outros animais.…”